An apparatus or system and method to control traffic at an intersection which uses a digital camera with pan, tilt, zoom, fast position and autofocus to send information to an integrated central processing unit having image processing algorithms which evaluate and analyze less than the entire image to determine whether a vehicle(s) is (are) present or are approaching and its (their) size, speed and distance in order to solve logical propositions to maintain or change the right of way by signal to a conventional traffic control signal unit.